Microstructure and Defect of Cu-Cr Alloy during Continuous Unidirectional Solidification
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摘要: 研究了銅鉻合金的連續走向凝固的工藝條件及相互之間的匹配關系,以及銅鉻合金的顯微組織及其表面缺陷形成的原因.結果表明:結晶器高度10~25mm,冷卻距離25 mm,合金溫度1210~1280℃,牽引速度0.2~1.0mm/s,冷卻水量720L/h時,可制得Cu-0.6% Cr合金材料.Abstract: The match relationship among technological conditions of Cu-Cr alloy, during continuous unidirectional solidification has been studied. Microstructure of Cu-Cr alloy and the reason for formation of surface defect in Cu-Cr alloy have been analyzed. The best technological conditions are:height of mold is 10-25 mm, cooling distance is 25 mm, melting temperature of Cu-Cr alloy is 1 280℃, Withdrawal speed is 0.24-1.00 mm/s, amount of cooling water is 720 L/h.
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Key words:
- continuous unidirectional solidification /
- Cu-Cr alloy /
- microstructure
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